UEi HUB vs Sizing US/CA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UEi HUB
This app connects to specialized testing tools via Bluetooth to display real-time measurements. It calculates and presents key refrigerant, air, and vacuum parameters, allowing users to monitor critical system data and customize their view for efficiency.
- Bluetooth connectivity to HUB test kits
- Real-time tool value display
- Refrigerant, air, and vacuum parameter calculation
- Superheat and Subcooling monitoring
- Customizable refrigerant favorites list
- Swipe interface for parameter views
- Drag and drop connection process
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UEi HUB is the companion app for all HUB test kits. Enable Bluetooth on your mobile device to read tool values from your HUB probes (WOT2, WPC1, WPC2, WPP1, WHP1, WVG2), WRS, COA2, DTHA2, Analyzer, EPC. In addition to measurement values HUB calculates and displays important refrigerant side, air side and vacuum parameters all in your preferred units. Monitor Superheat and Subcooling for any of the included refrigerants. Add refrigerants to your favorites list to quickly change between them on the refrigerant side display. Smoothly transition between vacuum, refrigerant side or air side values with a swipe of the display. With the simple drag and drop connection process, and ample wireless range HUB makes it easy to get the system information you need without being tied to a fixed location on the job site.
Sizing US/CA
This utility app helps installers determine the correct size of flexible gas piping for their projects. It calculates the appropriate pipe size based on gas type, tubing length, supply pressure, and flow capacity. Users can also access installation guides and product information.
- Flexible gas pipe sizing
- US and CA location selector
- Automatic value adjustment
- Certification card access
- Installation guide viewer
- Product search
- Direct contact with developer
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Size Gastite® and FlashShield™ flexible gas piping with this convenient and easy-to-use application for the iPhone. This app allows flexible gas pipe installers to determine the appropriate size Gastite pipe recommended for the installation at hand. Based on the project’s gas type, length of tubing run, supply pressure, pressure drop, and flow capacity – the app will calculate the appropriate size Gastite/FlashShield CSST for your application. Features : Includes a location selector for US and CA Scroll wheel automatically adjusts depending on values selected Find your certification card to link a digital version to your device FAQs View the latest Design and Installation Guide Search for Gastite and FlashShield products Contact Page submits questions and requests directly to Gastite The Gastite and FlashShield flexible gas piping systems are designed and warranted to provide sufficient gas volume and pressure for proper appliance performance using the appropriate sizing tables and methods detailed in the Design and Installation Guide and this Mobile Sizing App. Accordingly, the design pressure loss on the Gastite and FlashShield piping system under maximum probable flow conditions, from the point of delivery to the inlet connection of the equipment shall be such that the supply pressure at the equipment is greater than the minimum pressure required for proper equipment operation. Minimum Requirements - iOS version 8
Screenshots
Verdict
The clearest difference is rating: Sizing US/CA at 3.2 against UEi HUB's 1.7. Sizing US/CA also leads on iOS requirement (10.0 vs 15.6). UEi HUB's advantage is ads (none vs shown) and update cadence (every 9 days vs every 6 weeks). On price, review sentiment, ratings volume and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Sizing US/CA holds the better App Store score, 3.2 against 1.7. Both are backed by a comparable volume of ratings — 11 and 13 respectively. Written reviews split almost evenly too, at 12% and 11% positive.
UEi HUB ships an update every 9 days, Sizing US/CA every 6 weeks. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.
| Parameter | UEi HUB | Sizing US/CA |
|---|---|---|
| Price | Free | Free |
| Rating | 1.7 (11 ratings) | 3.2 (13 ratings) — better |
| Positive reviews | 11.5% of reviews — better | 11.1% of reviews |
| Number of ratings | 11 | 13 — better |
| Update frequency | Every 9 days — better | Every 6 weeks |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 10.0 — better |
| Further details — not scored | ||
| Size | 108 MB | 27 MB |
| Age rating | 4+ | 17+ |
| Developer | Kane Asia Inc. | Gastite Products LLC |
Customer experience
UEi HUB
Sizing US/CA
In-app purchases
UEi HUB
No in-app purchases
Sizing US/CA
No in-app purchases
